EP0078939A1 - Dispositif en forme de bâton pour détecter le niveau respectif de liquides dans des récipients, des canaux ou similaires - Google Patents

Dispositif en forme de bâton pour détecter le niveau respectif de liquides dans des récipients, des canaux ou similaires Download PDF

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Publication number
EP0078939A1
EP0078939A1 EP82109571A EP82109571A EP0078939A1 EP 0078939 A1 EP0078939 A1 EP 0078939A1 EP 82109571 A EP82109571 A EP 82109571A EP 82109571 A EP82109571 A EP 82109571A EP 0078939 A1 EP0078939 A1 EP 0078939A1
Authority
EP
European Patent Office
Prior art keywords
light guide
carrier body
light
projections
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82109571A
Other languages
German (de)
English (en)
Other versions
EP0078939B1 (fr
Inventor
Wolfram Henning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0078939A1 publication Critical patent/EP0078939A1/fr
Application granted granted Critical
Publication of EP0078939B1 publication Critical patent/EP0078939B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet

Definitions

  • the light guide 1 is only shown by a boundary line in FIGS. 5 to 9, although a jacket 4 can of course also be provided here.
  • FIG. 5 shows a cross section through the carrier body 5. This has openings 19 which can be designed to give shape or, as shown here, are provided following rib-shaped knobs 20. The only important thing is that the light guide 1 is divided into straight areas 9 and into curved areas 10 or is broken into such a shape.
EP82109571A 1981-11-10 1982-10-16 Dispositif en forme de bâton pour détecter le niveau respectif de liquides dans des récipients, des canaux ou similaires Expired EP0078939B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3144541 1981-11-10
DE3144541A DE3144541C2 (de) 1981-11-10 1981-11-10 Stabähnliche Vorrichtung zum Erfassen des Niveaus von Flüssigkeiten in Behältern, Kanälen o. dgl.

Publications (2)

Publication Number Publication Date
EP0078939A1 true EP0078939A1 (fr) 1983-05-18
EP0078939B1 EP0078939B1 (fr) 1986-08-27

Family

ID=6146001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109571A Expired EP0078939B1 (fr) 1981-11-10 1982-10-16 Dispositif en forme de bâton pour détecter le niveau respectif de liquides dans des récipients, des canaux ou similaires

Country Status (4)

Country Link
US (1) US4489602A (fr)
EP (1) EP0078939B1 (fr)
JP (1) JPS5887426A (fr)
DE (2) DE3144541C2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003832A1 (fr) * 1984-12-17 1986-07-03 Bellhouse Medical Products Limited Capteur a fibres optiques
GB2173894A (en) * 1985-04-18 1986-10-22 Stc Plc Optical fibre sensors
EP0274771A2 (fr) * 1984-01-20 1988-07-20 Hughes Aircraft Company Capteur de niveau de liquide
EP0347095A1 (fr) * 1988-06-13 1989-12-20 Imo Industries Inc. Palpeur optique de niveau pour liquides
WO1991013323A2 (fr) * 1990-02-23 1991-09-05 Hughes Aircraft Company Jauge a carburant et a liquide a fibres optiques
EP0453226A2 (fr) * 1990-04-20 1991-10-23 Hughes Aircraft Company Détecteur à fibres optiques de fuites fluides
US5220180A (en) * 1990-02-23 1993-06-15 Hughes Aircraft Company Fiber optic fuel and liquid gauge having an open rigid "J" shaped tube

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132936U (ja) * 1984-07-31 1986-02-27 古河電気工業株式会社 光フアイバ液面センサヘツド
GB8422910D0 (en) * 1984-09-11 1984-10-17 Lucas Ind Plc Liquid level gauge
JPS6365321A (ja) * 1986-09-08 1988-03-23 Nagoyashi 光学式液面レベルセンサ
DE3703629C2 (de) * 1987-02-06 1995-11-02 Bosch Gmbh Robert Füllstandsanzeiger
DE4310059A1 (de) * 1993-03-27 1994-09-29 Valentron Ag Verfahren und Vorrichtung zur Bestimmung des Füllgrades durch bzw. des Füllstandes von Flüssigkeit in einem Behältnis
US5330073A (en) * 1993-04-15 1994-07-19 Boston Advanced Technologies, Inc. Gasoline dispenser leak detectors and automatic shut-off systems
US5422495A (en) * 1993-04-15 1995-06-06 Boston Advanced Technologies, Inc. Optical sensor having a floatation means for detecting fluids through refractive index measurement
GB9603251D0 (en) * 1996-02-16 1996-04-17 Sensor Dynamics Ltd Apparatus for sensing one or more parameters
GB9721473D0 (en) 1997-10-09 1997-12-10 Sensor Dynamics Ltd Interferometric sensing apparatus
DE19959279A1 (de) * 1999-12-09 2001-06-21 Messer Griesheim Gmbh Verfahren und Vorrichtung zur Füllstandsmessung in einem geschlossenen Behälter
US20030090161A1 (en) * 2001-10-19 2003-05-15 Marlow C. Allen Light communication channel-based electronics power distribution system
US20030095675A1 (en) * 2001-10-19 2003-05-22 Marlow C. Allen Light communication channel-based voice-activated control system and method for implementing thereof
GB2385665B (en) * 2001-10-19 2004-06-02 Visteon Global Tech Inc Engine combustion monitoring and control with intergrated cylinder head gasket combustion sensor
US6949758B2 (en) * 2001-10-19 2005-09-27 Visteon Global Technologies, Inc. LCC-based fluid-level detection sensor
EP1450141A1 (fr) * 2003-02-11 2004-08-25 Jean-Sébastien Dubuisson Détecteur de niveau de liquide
GB2414543B (en) * 2004-05-25 2009-06-03 Polarmetrix Ltd Method and apparatus for detecting pressure distribution in fluids
US7161165B2 (en) * 2004-07-07 2007-01-09 Opti Sensor Systems, Llc Optical transducer for continuously determining liquid level
ES2339205B1 (es) * 2008-02-13 2011-03-11 Universidad Carlos Iii De Madrid Sistema de medicion del nivel de combustible en ultraligeros.
CN104198014B (zh) * 2014-09-06 2017-08-25 中北大学 基于暗场检测的光纤宏弯耦合结构液位探头
GB2576773A (en) 2018-08-31 2020-03-04 Advanced Fibreoptic Eng Ltd Fluid level sensing device and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448616A (en) * 1967-06-29 1969-06-10 Sinclair Research Inc Liquid level detector
DE1548983A1 (de) * 1965-04-29 1970-04-02 Hactronic Ag Lichtelektrischer Fluessigkeitsdetektor
DE2654104A1 (de) * 1976-11-29 1978-06-01 Grumman Aerospace Corp Elektrooptisches fluid-messystem
EP0006317A1 (fr) * 1978-05-31 1980-01-09 Eaton S.A.M. Détecteur de niveau pour liquide
DE2845565A1 (de) * 1978-10-19 1980-04-30 Siemens Ag Fuellstandsanzeiger
DE2804639B2 (de) * 1978-02-03 1980-12-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Füllstandsanzeiger

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620660A (en) * 1949-12-28 1952-12-09 Atlantic Refining Co Liquid level gauge
DE883068C (de) * 1950-10-24 1953-07-13 Oldham & Son Ltd Fluessigkeitsstandanzeiger
US3384885A (en) * 1966-02-21 1968-05-21 Gen Motors Corp Multiple liquid reservoir liquid level indicator
AT267898B (de) * 1966-05-20 1969-01-27 Hectronic Ag Automatische Sicherungseinrichtung gegen Überfüllen einer Tankanlage mit einer Flüssigkeit
US3884171A (en) * 1973-06-01 1975-05-20 John P Kline Boat hull with a bottom of a portion of the surface of a hyperboloid
US4287427A (en) * 1977-10-17 1981-09-01 Scifres Donald R Liquid-level monitor
US4151747A (en) * 1978-06-21 1979-05-01 Electric Power Research Institute, Inc. Monitoring arrangement utilizing fiber optics
JPS568514A (en) * 1979-07-03 1981-01-28 Sumitomo Electric Ind Ltd Liquid amount detector
JPS56142658A (en) * 1980-04-08 1981-11-07 Toshiba Corp Leak water detector for water-cooled electric equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1548983A1 (de) * 1965-04-29 1970-04-02 Hactronic Ag Lichtelektrischer Fluessigkeitsdetektor
US3448616A (en) * 1967-06-29 1969-06-10 Sinclair Research Inc Liquid level detector
DE2654104A1 (de) * 1976-11-29 1978-06-01 Grumman Aerospace Corp Elektrooptisches fluid-messystem
DE2804639B2 (de) * 1978-02-03 1980-12-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Füllstandsanzeiger
EP0006317A1 (fr) * 1978-05-31 1980-01-09 Eaton S.A.M. Détecteur de niveau pour liquide
DE2845565A1 (de) * 1978-10-19 1980-04-30 Siemens Ag Fuellstandsanzeiger

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274771A2 (fr) * 1984-01-20 1988-07-20 Hughes Aircraft Company Capteur de niveau de liquide
EP0274771A3 (en) * 1984-01-20 1989-03-15 Hughes Aircraft Company Liquid level sensor
WO1986003832A1 (fr) * 1984-12-17 1986-07-03 Bellhouse Medical Products Limited Capteur a fibres optiques
GB2173894A (en) * 1985-04-18 1986-10-22 Stc Plc Optical fibre sensors
EP0347095A1 (fr) * 1988-06-13 1989-12-20 Imo Industries Inc. Palpeur optique de niveau pour liquides
WO1991013323A2 (fr) * 1990-02-23 1991-09-05 Hughes Aircraft Company Jauge a carburant et a liquide a fibres optiques
WO1991013323A3 (fr) * 1990-02-23 1991-10-03 Hughes Aircraft Co Jauge a carburant et a liquide a fibres optiques
US5220180A (en) * 1990-02-23 1993-06-15 Hughes Aircraft Company Fiber optic fuel and liquid gauge having an open rigid "J" shaped tube
EP0453226A2 (fr) * 1990-04-20 1991-10-23 Hughes Aircraft Company Détecteur à fibres optiques de fuites fluides
EP0453226A3 (en) * 1990-04-20 1992-09-16 Hughes Aircraft Company Fiber optic liquid leak detector

Also Published As

Publication number Publication date
DE3272920D1 (en) 1986-10-02
DE3144541C2 (de) 1984-05-24
US4489602A (en) 1984-12-25
DE3144541A1 (de) 1983-05-26
EP0078939B1 (fr) 1986-08-27
JPS5887426A (ja) 1983-05-25

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